Senior-Mobile-Developer, React-Native-Developer, Mobile-Application-Developer Jobs

Build software used every day on farms around the world.

At VAS, we're building technology that helps dairy producers operate more efficiently, make better decisions, and feed a growing world. Our FeedComp platform is a mission-critical mobile application used in real-world environments where reliability matters, whether users are online or working in areas with limited connectivity.

We're looking for a Senior Mobile Software Developer to help modernize and evolve our React Native application into a best-in-class mobile platform. This is an opportunity to solve challenging engineering problems involving offline-first architecture, Bluetooth device integration, synchronization, scalability, and performance while helping shape the long-term technical direction of the product.

Why You'll Love This Role

This is more than building mobile screens. You'll solve complex engineering challenges that directly impact customers around the world.

In this role, you'll:

• Modernize a large-scale production React Native application

• Design reliable offline-first mobile experiences

• Build Bluetooth Low Energy (BLE) integrations with connected devices

• Improve application performance, synchronization, and reliability

• Influence architecture and engineering standards

• Mentor other developers and provide technical leadership

• Work directly with customers to understand real-world workflows and build solutions that make a difference

What You'll Do

• Design, develop, test, and maintain React Native application features

• Build reliable mobile experiences that perform seamlessly online and offline

• Design and improve local data storage and synchronization capabilities

• Contribute to application architecture, scalability, and long-term technical direction

• Collaborate with Product, UX, QA, and Engineering to deliver high-quality solutions

• Participate in code reviews and mentor junior developers

• Continuously improve engineering practices, code quality, and team effectiveness

• Occasionally visit customer farms to better understand user workflows and identify opportunities for innovation

What We're Looking For

Qualifications

• 6+ years of professional mobile application development experience, including strong expertise with React Native
• Experience designing and building scalable, maintainable mobile applications using sound software architecture and engineering best practices
• Experience developing applications that support intermittent or offline connectivity, including local databases and mobile synchronization strategies
• Experience integrating Bluetooth Low Energy (BLE) or similar hardware/device communication into mobile applications
• Native Android or iOS development experience is a plus
• Experience working in Agile software development environments using Jira, Gitflow, and modern CI/CD practices
• Demonstrated ability to mentor developers, lead technical initiatives, and collaborate effectively across cross-functional teams
• Interest in learning about agriculture and leveraging technology to improve farm operations

• Willingness to travel to customer locations within the U.S. up to 15% as needed

Why VAS?

At VAS, you'll join a collaborative engineering team with the agility of a small software company and the stability and global reach of URUS. We believe great software comes from curious people who enjoy solving difficult problems, learning from customers, and continuously improving how they build.

Your work won't disappear into the background. You'll build technology used every day by customers around the world while solving meaningful technical challenges with modern mobile engineering practices.

Originally posted on Himalayas

Senior | Tech Lead Mobile App Developer (React Native) – Remote

$150k - $250k

We need someone with 8+ years of software engineering experience, with deep hands-on mobile work, who has owned the architecture of a production React Native app on both iOS and Android. You should be comfortable writing a lot of code yourself while also making the key technical decisions for the mobile product in a lean, fully remote startup team. You should have a track record of shipping and maintaining apps on the App Store and Google Play. Your current or most recent experience should be in crypto, blockchain, Web3, or DeFi. Bonus points if you've worked on a trading product (for example, fomo), or if you've come into crypto from traditional finance or fintech.

Responsibilities

• Pick up Injective Labs' new trading app quickly and keep it moving. The app is a perpetual DEX that also includes a prediction market. It's already approved on the App Store and Google Play and is in a gated test launch. You'll be replacing the engineer who built it, who is leaving after more than two years.
• Own the React Native app's architecture, scalability, performance, reliability, and long-term maintainability across iOS and Android.
• Work closely with Product, Design, Backend Engineering, and two non-mobile engineers on the team (one junior, one senior full stack). Together you'll turn complex trading features into fast, easy-to-use mobile experiences, including API design, integrations, and real-time data flows (gRPC, SSE, WebSockets).
• Build complex, high-impact features in React Native and TypeScript, many of them from scratch. You'll also set and maintain the codebase's engineering standards, patterns, and best practices.
• Lead mobile features from technical design and implementation through testing, App Store and Google Play releases, monitoring, and iteration.
• Find and fix complex production issues, improve app performance, and guide other engineers through code reviews, design discussions, and pair programming. Strong performers can grow into the formal Tech Lead role.

Required

• Experience building and shipping production mobile applications on iOS and Android
• Current experience in crypto,​ blockchain,​ Web3,​ or DeFi (or recent exit after long crypto tenure)
• Professional experience in React Native,​ React,​ TypeScript,​ and JavaScript
• Experience developing crypto,​ blockchain,​ Web3,​ or DeFi production mobile applications
• 7 -​ 10 years of experience as a mobile developer

Nice to have

• Experience building fintech or trading applications (real-​time market data,​ order execution,​ charting)
• Experience owning mobile application architecture and technical decisions for production mobile applications
• Experience publishing and maintaining applications on the Apple App Store and Google Play Store

Originally posted on Himalayas